I'm more of a mechanical engineer than a coder, and for me it's been super helpful writing the code. The rest of our repo is clear enough that even I can understand what it actually does by just reading it. What I'm unfamiliar with are the syntax, and which nifty things our libraries can do.

So if you kinda understand programs but barely know the language, then it's awesome. The actual good programmers at my company prefer a minimal working example to fix over a written feature request. Then they replace my crap with something more elegant.